@pbsnews: El Niño is out. La Nina is coming. What are they? El Niño and La Niña are climate events in the Pacific Ocean that affect weather patterns worldwide. El Niño occurs when Pacific Ocean surface temperatures are .9 degrees Fahrenheit warmer than normal. They lead to more rain in the southeast U.S. and dryer conditions in northwestern states. They also contribute to warmer temperatures globally. La Niñas officially occur when Pacific Ocean surface temperatures are .9 degrees Fahrenheit colder than normal. They cause drier conditions in the Southern U.S. and more hurricanes in the Atlantic. #elnino #lanina #elninoweather #laninaweather #weather #weatherchanges #climagtechange #globalwarming #weathertiktok #climateaction #climate #climateaction #hurricane #flooding #drought #pacificocean #weatherpatterns